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Hazardous Materials
Tuolumne County Environmental Health is the Certified Unified Program Agency (CUPA) for all areas of Tuolumne County. The CUPA is committed to ensuring that the citizens of Tuolumne County are afforded a safe and clean environment. Through the administration and enforcement of federal, state and local laws, regulations, and ordinances pertaining to:

Combined with education and cooperation of local businesses, we will endeavor to provide a safe and healthy workplace, and to protect the environment from accidental or unauthorized hazardous material releases.

Hazardous Waste Generator
According to California Health and Safety Code, Chapter 6.5, hazardous waste is subject to storage time limits, disposal requirements, and container labeling and management requirements. There are approximately 265 facilities permitted to generate hazardous waste in Tuolumne County that are inspected triennially.

Underground Storage Tank
California Health and Safety Code Chapter 6.7 and Tuolumne County Ordinance Code Title 8 states that all underground storage tanks (USTs) are subject to monitoring for leakage. All UST operating permits are issued annually to verify compliance with state laws, regulations, and permit conditions.

All new tanks, tank modifications / repairs, and tank removals / closures are permitted by the Environmental Health Department. There are 138 UST facilities in Tuolumne County that are inspected annually.

Above Ground Storage Tank
California Health and Safety Code Chapter 6.67 explains that as of January 1, 2008, Assembly Bill 1130 transferred the responsibility for the implementation, enforcement, and administration of the Above Ground Petroleum Storage Act (APSA) from the State Water Resources Control Board to CUPA.

This law mandates CUPA to conduct inspections of all facilities that store petroleum products in containers of 55 gallons or greater, including aboveground tanks, with a total aggregate quantity of at least 10,000 gallons. This law requires all facilities that store an aggregate quantity of at least 1320 gallons of petroleum / petroleum products (including waste oil) to submit a storage statement to CUPA on an annual basis.

Spill Prevention
Facilities that store petroleum / petroleum products that meet or exceed the aggregate quantity of 1320 gallons are required to prepare a spill prevention control and countermeasure (SPCC) plan and implement its provisions. The exception to this law applies to farms, nurseries, construction sites, or logging sites which are exempt from preparing a SPCC, unless the tank is equal to or exceeds 20,000 gallons and the cumulative total capacity is more than 100,000 gallons. However, farms, nurseries, construction sites, or logging sites must conduct daily inspections of containers and tanks containing petroleum, allow the CUPA to inspect the facility, and install secondary containment if the CUPA deems necessary.

These facilities are not exempt from federal requirements, only APSA. There are approximately 65 facilities that are inspected triennially.

Hazardous Materials Business Plan
According to California Health and Safety Code Chapter 6.95, TCEHD will conduct regulatory oversight (review of plans and inspections) of all businesses including farms, federal agencies, state agencies, and local agencies that handle quantities of hazardous materials / hazardous waste greater than or equal to:
  • 55 gallons of liquid
  • 500 pounds of solids
  • 200 cubic feet of a compressed gas

There are an estimated 1,250 facilities throughout Tuolumne County that are subject to the regulatory requirements of this program that are inspected triennially.

California Accidental Release Prevention Program
California Health and Safety Code Chapter 6.95 dictates that there are certain regulated substances, known as extremely hazardous substances, that require extensive emergency planning. The most common regulated extremely hazardous substance found in the county requiring a risk management plan (RMP) is anhydrous ammonia. There are over 400 other chemicals that may require a RMP.

Business Requirements
Businesses that meet threshold quantities specified by the Environmental Protection Agency (EPA) are subject to both state and federal RMP requirements and shall provide their RMP to both the Tuolumne County Environmental Health Department (TCEHD) and the EPA on the date on which the regulated substance is first present in a process above the federal threshold quantities of the substance.

Facilities that have regulated substances above the State of California thresholds shall submit a RMP to the TCEHD on the date on which a regulated substance is first present in a process above the state threshold quantities. Every three years, the owner must certify compliance of their processes and practices, and every five years the owner must update their RMP and reevaluate that their process hazard analysis remains current.

There are three facilities throughout Tuolumne County that are subject to the regulatory requirements of this program that are inspected triennially.

Environmental Health
Email

Physical Address:
A.N. Francisco Building
Floors 3 and 4
48 Yaney Ave
Sonora, CA 95370

Mailing Address:
2 South Green Street
Sonora, CA 95370

Telephone: 209-533-5633
FAX: 209-533-5616

Hours:
Monday through Friday
8:00 a.m. - 3:00 p.m.
Telephone: 7:30 a.m. - 3:00 p.m.

Inspections Line:
209-533-5992